Coating processes – Direct application of electrical – magnetic – wave – or... – Polymerization of coating utilizing direct application of...
Patent
1991-02-27
1993-10-19
Padgett, Marianne
Coating processes
Direct application of electrical, magnetic, wave, or...
Polymerization of coating utilizing direct application of...
427 2, 427491, 427535, 427538, 427539, 427569, 427237, 427238, B05D 306, B05D 722, A01N 102
Patent
active
052543722
ABSTRACT:
A method for plasma treatment of a predetermined portion of a substrate. The impedance of the coil and an established normal plasma is matched with the impedance of a power source, thereby maximizing the efficiency of the transfer of energy from the power source to the coil and producing a resonant plasma. The predetermined portion of the substrate is exposed to the resonant plasma for treatment. Additionally, a method for plasma treatment of a predetermined portion of the outside surface of a filament. The filament is trained through an inlet and exit of a plasma treatment chamber, through an inlet side tubular mask within the chamber, and through an exit side tubular mask within the chamber, each mask being adjustable within the chamber axially of the filament to expose a predetermined segment of the filament to plasma in the chamber while masking the remainder of the filament within the chamber from exposure to plasma. The predetermined segment is subjected to plasma treatment by establishing a plasma within the chamber which contacts the filament. Additionally, an apparatus adapted for carrying out the foregoing methods and a dielectric catheter produced by the foregoing methods.
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Nichols Technologies, Inc.
Padgett Marianne
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